Answer:
y= 1/2 x +2
Explanation:
equation is Y=mx+b
using rise over run you get 1/2 (rise 1, run 2) to get to your next point
since it's going upwards it's a positive slope
y-intersection is at (0,2) therefore b is 2
or
using two points from the graph (2,3) and (4,4)
using slope formula
plug in the points :

then plug into the formula y=
x +b and choose a point and plug it in
3=(1/2)(2) + b
and slove for b:
3= 1 +b
2=b
now your equation is y= 1/2 x + 2